Could it be possible to change offline raid, so you not can't raid when people have gone offline, and you first can raid them when they go online again,

But that the players still have cooldown on 5 min or 10 min when they go offline?

{
  "absoluteTimeScale": {
    "03": 0.1
  },
  "activity": [
    "input",
    "loot",
    "respawn",
    "chat"
  ],
  "afkMinutes": 5,
  "clanFirstOffline": false,
  "clanShare": false,
  "cooldownMinutes": 10,
  "damageScale": {
    "1": 0.2,
    "12": 0.8,
    "3": 0.35,
    "48": 1,
    "6": 0.5
  },
  "interimDamage": 0.0,
  "minMembers": 1,
  "playSound": true,
  "prefabs": [
    "door.hinged",
    "door.double.hinged",
    "window.bars",
    "floor.ladder.hatch",
    "floor.frame",
    "wall.frame",
    "shutter",
    "wall.external",
    "gates.external",
    "box",
    "locker"
  ],
  "showMessage": true,
  "sound": "assets/prefabs/weapon mods/silencers/effects/silencer_attach.fx.prefab",
  "VERSION": "0.3.5"
}​

The cooldownMinutes option, as stated in the documentation..

The number of minutes after going offline that damage remains default. After cooldown has expired, damage is completely canceled (interimDamage) up until the 60 minutes (after which damageScale is used)

Should I put permission (antiofflineraid.protect) on all my groups to protect them when the are offline?

Groups 
default
admin
moderator? 

Thx :)